Articles | Volume 24, issue 14
https://doi.org/10.5194/acp-24-8139-2024
https://doi.org/10.5194/acp-24-8139-2024
Research article
 | 
19 Jul 2024
Research article |  | 19 Jul 2024

NOx emissions in France in 2019–2021 as estimated by the high-spatial-resolution assimilation of TROPOMI NO2 observations

Robin Plauchu, Audrey Fortems-Cheiney, Grégoire Broquet, Isabelle Pison, Antoine Berchet, Elise Potier, Gaëlle Dufour, Adriana Coman, Dilek Savas, Guillaume Siour, and Henk Eskes

Model code and software

The Community Inversion Framework: codes and documentation (v1.1) Antoine Berchet, et al. https://doi.org/10.5281/zenodo.6304912

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Short summary
This study uses the Community Inversion Framework and CHIMERE model to assess the potential of TROPOMI-S5P PAL NO2 tropospheric column data to estimate NOx emissions in France (2019–2021). Results show a 3 % decrease in average emissions compared to the 2016 CAMS-REG/INS, lower than the 14 % decrease from CITEPA. The study highlights challenges in capturing emission anomalies due to limited data coverage and error levels but shows promise for local inventory improvements.
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